Featurebase
Canny.io
UserVoice
Upvoty
Nolt.io
Frill
productboard
Survicate
NextBlock.dev
WordPress
Strapi
Payload CMS
Sanity.io
NextBlockโข CMS is a high-performance, developer-first, open-source platform built natively for full-stack environments. Unlike decoupled headless architectures that force schema duplication, API mapping bottlenecks, and separate repository management, NextBlock delivers a unified framework. It pairs a fluid editorial canvas with a built-in Next.js 16 and Supabase/PostgreSQL architecture to achieve perfect 100/100 Lighthouse performance scores by default.
Native i18n Middleware: Localized routing is built into Next.js edge middleware, processing header variants instantly without hydration lag or heavy runtime bundle bloat.
Tech Stack: Next.js 16 (App Router), Supabase/Postgres, Tailwind CSS, Nx Monorepo, Turbopack.
License: 100% Open-Core under AGPLv3.
Featurebase
NextBlock.devCanny.io - Canny helps you collect and organize feature requests to better understand customer needs and prioritize your roadmap.
WordPress - WordPress is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at the same time.
UserVoice - UserVoice integrates easy-to-use feedback, helpdesk, and knowledge base management tools in one platform that empowers users to speak and companies to understand.
Strapi - Manage any content. Anywhere. The leading open-source headless CMS. 100% JavaScript / TypeScript and fully customizable.
Upvoty - User feedback in 1 simple overview ๐ฅ
Payload CMS - Headless CMS and Application Framework built with Node.js, React and MongoDB